JQ_SUBMIT
WRITE_ONCE(*qtail[JQ_SUBMIT], next);
q[JQ_SUBMIT] = jobqueue_init(sb, fgq + JQ_SUBMIT, force_fg);
qtail[JQ_SUBMIT] = &q[JQ_SUBMIT]->head;
q[JQ_SUBMIT]->head = next = f->head;
bio->bi_private = q[JQ_SUBMIT];
qtail[JQ_SUBMIT] = &pcl->next;
kvfree(q[JQ_SUBMIT]);
z_erofs_decompress_kickoff(q[JQ_SUBMIT], nr_bios);
wait_for_completion_io(&io[JQ_SUBMIT].u.done);
return z_erofs_decompress_queue(&io[JQ_SUBMIT], &f->pagepool) ?: err;